Finding the Fourth Proportional to 387,253,863.24, 581,052,331.90 and 202,977,545.24
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Solution
The fourth proportional to 387,253,863.24, 581,052,331.90 and 202,977,545.24 is: 304,556,228.31
Step by Step Solution
- Step 1: Write the proportion equation
387,253,863.24 : 581,052,331.90 = 202,977,545.24 : x - Step 2: Convert to fraction form
387,253,863.24/581,052,331.90 = 202,977,545.24/x - Step 3: Cross multiply
387,253,863.24x = 581,052,331.90 × 202,977,545.24 - Step 4: Simplify right side
387,253,863.24x = 117,940,575,985,039,744 - Step 5: Solve for x
x = 117,940,575,985,039,744/387,253,863.24 - Step 6: Final answer
x = 304,556,228.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.